Sorry, didn't really know what title to use

How did I get this question wrong?

what is given that ???

My WIP

EDIT: sorry realised my fault. But can anyone answer me? I need the method because I know that answer is 7/16

Results 1 to 5 of 5

- Jan 18th 2010, 10:01 AM #1

- Jan 18th 2010, 10:14 AM #2

- Jan 18th 2010, 10:15 AM #3

- Jan 18th 2010, 10:19 AM #4

- Jan 18th 2010, 10:24 AM #5